<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .leo {
            width: 147px;
            height: 60px;
            background: #f6f7f9;
            text-align: center;
            line-height: 60px;
        }
    </style>
</head>
<body>
<div class="leo">hello world</div>
</body>
</html>